The Appalachian National Scenic Trail in the United States, begins and ends in which two states?

The Appalachian National Scenic Trail also called the Appalachian Trail or simply the A.T. is a marked hiking trail in the Eastern United States extending between the trailhead in Springer Mountain in the state of Georgia and the trailhead in Mount Katahdin in the state of Maine. Though the exact length of the A.T. changes over time as parts are modified or rerouted, it is about 2,200 miles (3,550 km) long.

It is estimated that over 2 million people take a hike on part of the trail at least once each year. More than 2,700 people hike the entire distance from end to end and if a hiker turns around and completes the journey going the other way, they are known as a 'yo-yo'.

Some of the challenges hikers face while on the trail include severe weather, the American black bear, tick-borne diseases, mosquitos, yellow jackets, biting flies, chiggers, poison ivy, and venomous snakes.

The highest point on the trail is Clingmans Dome at 6,643 feet (2,025 m) while the lowest point is located in the Bear Mountain State Park at 124 feet (38 m).

Three organizations manage the trail including the National Park Service, the United States Forest Service and a not-for-profit organization called the Appalachian Trail Conservancy. The A.T. passes through 14 states.

The idea of the A.T. was conceived in 1921 by Benton MacKaye, a forester who wrote the original plan - "An Appalachian Trail, A Project in Regional Planning". It was completed in 1937.